1. Microwave heating: Put the sesame seed cake in the microwave for about 3 minutes, and it will dry and harden after cooling slightly. You can also rinse the sesame seed cake with water and put it in the microwave oven to increase the moisture, but it will reduce the taste.

2. Oven heating: Bake the sesame seed cake in an oven at 200 degrees Celsius for about 3 minutes, and the sesame seed cake will return to its original state. After the furnace temperature rises completely, put in the sesame seed cake and heat it.

3. Hot pot: turn on a small fire without putting oil, add a little water to the pot, put the sesame seed cake flat, cover the lid, and the hot air will come out. It is estimated that there is not much water in the pot. Open the lid and turn the sesame seed cake over. Remember that the front skin of the sesame seed cake is thin, just heat it a little, and it will get bigger after a long time. Then let the thick side of sesame cake dry bake for a while. This method can better restore the original flavor of sesame seed cake and has the best taste.